Combined door hinge and check



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A; `A-LLGIER.

COMBINED DOOR HINGE AND CHECK.

No. 557,936.` 'PaentedApn 7, 1896.

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UNITED STATES u PATENT OFFICE.

ANDREW ALLGIER, OF GRAND RAPIDS, MICHIGAN.

COMBINED DOOR HINGE AND-CHECK.

SPECIFICATION forming part of Letters Patent No. 557,936, dated Aprll 7, 1896.

Application iiled May 2, 1895. Serial No. 547,899. (Modell) T0 all whom it may concern,.-

Be it known that I, ANDREW ALLGIER, a citizen of the United States, residing at Grand Rapids, in the county of Kent and State of Michigan ,have invented certain new and useful Improvements in Door-Hinges, of which the following is a specification.

My invention relates to a combined door hinge and check, and its object is to provide a hinge that will prevent the door from slamming when closing. I attain this object by the mechanism illustrated in the accom pany ing drawings, in which- Figure l is a sectional elevation of my ordinary hinge. Fig. 2 is the same, showing a sliding head for the pivot-pin and a screwthread and nut at the lower end thereof. Fig.

3 is an end View of my hinge as constructedto use on the surface of a door and its casing where the ordinary door-hinges are retained. Fig. 4 is the same as constructed to use in lieu of an ordinary hinge. Fig. 5 is an elevation of the check-pin and the lower lug of the hinge, showing the lugs engaged to prevent the door from slamming. Fig. 6 is a top and a bottom plan of the check-pin. Fig. 7 is a top plan of the lower lug of the hinge, and Fig. 8 is a bottom plan of the pin.

Similar letters refer to similar parts throughout the several views.

In constructing my hinge I form a cylindrical bearing A2 A on the meeting edges of the leaves A Aof a proper size to receive the body B of the check-pin and the spiral spring E outside of the pivot-pin D.

The check-pin B may be made of any de sired length, and is provided at its lower end with a small semicircular lug or clutch o, which lug is formed on the lower surface of ahead l), that projects out around the pin sufciently to stand in the line of the outer surface of the cylindrical bearings of the hinge. I place a lug b2, corresponding with the lug ZJ on the check-pin, on the upper surface of the lower lug a. of the wing A of the hinge, which lug forms the lower bearing of the cylindrical bearing A2, and in position so that when the door is closed the two lugs b and b2 will come in contact before the door reaches the stop, and will check the force of the door by the forcing of the check-pin B up against the tension of the spring E by the forcing of the lugs over each other, as indicated in Fig. I.

That the pin B may have a sufficient longitudinal motion to allow the lugs to operate in the manner stated, I make the distance between the lower end of the bearing A3 and the bearing A2 suiiicient to allow the action with freedom.

' To form a perfect joint between the bearings A2 and A3, I introduce alongitudinallysliding and revoluble pin C, that laps by the joint, so that no break is formed at this point, and force the whole down by means of a strong spiral spring E, introduced between the longitudinally-sliding and revoluble pin C and the upper en'd of the bearing A2, and hold the whole to place by means of y the pivot-pin D, which bears the same relative' connection to `the hinge that the pivot-pin in an ordinary hinge does.

To provide for varying the tension of the spring E, I sometimes construct the head e of the pivoepin polygonal and the upper end of the bearing A2 to correspond, so that the head will enter and slide therein easily, but will not turn, and form the lower head as a detached nut, as shown at d2 in Fig. 2, with a chamber of sucient depth to allow of screwing it a considerable distance up on the pin, which is provided with the necessary screwthread to 4mesh therewith.

When using my hinge in connection with a door that is already hung upon ordinary hinges, I make it of the form shown in Fig. 3, where F represents a section of the door-casing andF a section of the door. It is constructed in this form so that the pivot-pin may be perfectly alined with the pivot-pins of the door-hinge, and also so that it may be placed on a door without the necessity of cutting into the door. When using it as an ordinary door-hinge, I make it as an ordinary hinge so far as the position of the wings are concerned. (See Fig. 4.) l

I find the most convenient way to make the IOO jamb, so that the weight of the door will be on the bearing A3, though this is not absolutely necessary.

Having thus fully described my invention, what l claim as new, and desire to secure by Letters Patent, is-

In a door-hinge, wings having cylindrical bearings, a check-pin fitted to slide longitudinally in one of said bearings and having a radially-projecting head with a lug on its lower surface, a spline and groove to prevent this check-pin from turning in the bearing, a lug on the upper surface of the lower bearing to engage with the lug on the lower surface of the check-pin, a spring in the upper bearing of the hinge in position to force the checkpin against the lower bearing, and a longitudinally-sliding and revoluble pin fitted close ANDREV AL'LGIER.

In presence ofv GEO. R. REEVES,

l. J. CILLEY. 

